William bowef



2 Sheets-Sheet 1. W. BOWEN. GRAIN AND SEED CLEANING MILL. A

Patented Eeb.20, 1883.

(No Model.)

ATTORNEYS.

WITNESSES (No Model.) `2 sheets-411m 2,

W. BWEN.

GRAIN AND SEED LEANING', MILL.

10.272,637. Patented Feb.2o,18as.

WITNEssBs 1, l Y INVENTOR ATTORNEYS.

N. PETERS, mumww. www. D. c,

' UNITED STATES ATnNT rieten.

VILLIAM BOWEN, 0F EDINA, BIISSURI.

GRAIN AND SEED CLEANINGIVII'LL.

. SPECIFICATION forming part ot Letters Patent No. 272,637, dated February 20, 1883.

a Application tiled March 24, 1882. (No model.)

To all whom it may concern Be it known that I, WILLIAM BOWEN, of Edina, in the county of Knox and State ot' Missouri, have invented a new and Improved Grain and Seed Cleaning Mill, ofwhich the following` is afull, clear, and exact description.

The object of my invention is to provide a new and improved mill for separating the chaff and poor seed from the good and perfect seeds or grains. Y

Theinvention consists in acylinder proyided with a series of incline plates, upon which the grains or seeds are fed, which cylinder is vibrated, so as to cause the light grains and seeds to pass to one corner of the plates, the latter being provided with apertures, through which the light grains and seeds pass, while the heavy grains and seeds, not being able to move. so rapidly, pass over the front edge of the plates into a chamber surrounding the cylinder. 1

The invention further consists in devices for vibrating the cylinder, and in details of con struction, as will be fully described and claimed hereinafter.

In the accompanying drawings, Figure l is a vertical section ot' my improved seed-clean` ing millon line w w of Fig. 2. Fig.2 is a horizontal section ot' the saine on line mx, Fig. 1. Fig. 3 is a plan view of a portion of the mill. Fig. 4 is a side view, part being broken out, and Fig. 5 is a longitudinal elevation of one ot' the apertured sliding strips for closing the seedentrance apertures. Fig. 6 is a plan view ot' one of the plates onto which the grain is fed.

A skeleton frame or hollow cylinder,A, is provided at the top and bottom with pivots b, which work in suitable bearings. A narrow annular compartment, C, Fig. l, is formed within the/cylinder A by two concentric cylinders, D D', which compartment is provided at the upper end with one or more tunnels, E,for delivering the seed or grain thereinto. A series of radial verticalpartitions, F, divide the space between the cylinder D and the cylinder A, thus forming a series of compartments. Said partitions 14 are provided with a series of grooves, Fig. 4, slightly inclined from the inner toward the outer edges of the partition, which grooves are adapted to receive the side edges of the shelves or plates I, so that the latter are inclined from their inner or rear edges to their outer or front edges. They are also inclined from lett to right, as also shown in Figui. Inotherwords,theplatesareslightly inclined downward from ,the inner lelthand corner toward the right left-hand outer corner, for a purpose hereinafter stared. The right inner corners are out out, to allow space for a strip or board, J, that extends from top to bot tom ot' the cylinder A.

For each plate l each strip or hoard J is provided with an aperture, d. A board or strip, K, provided with as ma'nyapertures g as there are apertures din the strip J, and the same distance apart, is arranged to slide on the back of each strip J. A screw, K', at the top of the strip K, passes through the top ot' the cylinder A, and is provided with a Winged nut, L, for adjusting said strip K higher or lower. The front left-hand corner ot each plate 1, Figs. 2, 4, and 6, is provided with an aperture, h.

Short tubes or spouts M project from the cylinder A at the bottom for discharging the heavierI grain that passes over the front edge of the plates Iand enters the annular chamber N, formed by a cylindrical casing, N', surrounding the cylinder A. The plates l are slid into the grooves, which hold them, before the vertical strips m are attached to the cylinder.

A cam-wheel, O, is mounted on a shaft, 0', and strikes against a projecting strip, P, attached to the top ofthe cylinder A.l A spring, Q, is attached to a post, It, and connected to the side ofthe cylinder by means of a cord, Q'. An elastic cushion, S, is attached to the post above the spring,`against which the bumperT strikes when the cylinder is vibrated. Short tubes or spouts V project from the bottom of the cylinder A into a receptacle, \V, below the cylinder for delivering the lighter grain and chaff.

'Ihe plates I are to be made of polished or varnished wood, metal, rubber, glass, or other material which is very smooth. The operation is as follows: The seeds, grain, or other like material pass from the chamber G through the apertures d1 upon the plates I, when the strip or board K is so adjusted that the apertures d and g ot the strips J and K coincide. Upon the plates I the trash or light ICO Q ses grains or seeds pass up theiuclined surface to the apertures l1l and drop through the same, and are finally collected in the receptacle W. The heavier seeds, grains, Sac., will not pass up the incline of the plates, but pass over their front edges, and thus drop into the chamber N, surrounding the cylinder A, and be discharged therefrom by spouts M into suitable vessels or receptacles. The vibrating or circular recprocating motion and sudden stop or jar given to the mill by the cam O,springQ,aud bumpeh T cause the above-described movements of the seeds or grainsthatisto say,the cam 0 turns the cylinder A until the first tooth ofthe cam lets loose, when the spring Q. pulls the cylinder back, and the bumper T then strikes against the cushion S and gives the shock.

What I claim is- 1. The combination of the plates Lplaced at the inclination specified, and having an aperture at the upper edge of each, With the hori- Zontallyvibrating cylinders or grain receptacle A D D', which is open at its outer side, and pivoted centrally at top and bottom,land thus adapted to have a circular reciprocating motion, as shown and described, whereby the chaff and light grain will pass up the inclined plates and through said apertures, while the heavier grain iows over the front edge of said plates.

2. The combination of cylinder A, having openings in its sides, the interior concentric cylinders D D,a hopper, E, fordischarging grain into the space between the latter, the dischargeregulators, the plates I, arranged at an inclination, and provided with apertures, as shown, and the vertical radial partitions F, all as set forth.

3. The combination, as herein described, of the cylinder havingpgrain-passages and separating devices, and pi\oted,as shown, so as t0 vibrate horizontally on its vertical axis, an arm, P, and bumper T, attached to the cylinder, the cam-wheel arranged contiguous to said arm, the post R, and the spring Q and cord Q for retracting the cylinder, all as shown and described.

WILLIAM. BOWEN.

Witnesses:

T. P. Coon, BENJAMIN BOWEN. 

